Waterline currently doesn't support cascading deletes. It may be a configuration option in future versions, but it will probably never be the default. In most production-ready apps you probably should be doing soft-deletes anyway. In either case, you can get what you want by using the afterDestroy
lifecycle callback.
In api/models/Teacher.js
, something like:
module.exports = {
attributes: {
// attributes here
},
afterDestroy: function(destroyedRecords, cb) {
// Destroy any child whose teacher has an ID of one of the
// deleted teacher models
Child.destroy({teacher: _.pluck(destroyedRecords, 'id')}).exec(cb);
}
}
You could do something similar with soft-deletes using the afterUpdate
method.